[c-nsp] gigabit ports/modules for 7507 and 7513 routers
Gert Doering
gert at greenie.muc.de
Tue Aug 7 16:16:09 EDT 2007
Hi,
On Tue, Aug 07, 2007 at 02:48:02PM -0400, Sridhar Ayengar wrote:
> > My understanding is that the PA-CyBus interface is a variation of PCI
> > that's limited to 330Mbps.
[..]
> So then doesn't that limitation also apply to the 7200VXR series routers?
There's no CyBus in 7200s. Just plain PCI, which, in theory, could
transport about a Gbit/s (33 MHz * 32 bit) - but even then, only
half-duplex, and not under real-world conditions.
gert
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